Typewriting machine



March 7, 1933. E. E. BARNEY TYPEWRITING MACHINE 3 Sheets-Sheet 1 Original Filed April 15, 1927 R wm m w Nm w D VI 5 ATTORNEY WITNESSES March 7, E33.

E. E. BARNEY TYPEWRITING MACHINE Original Filed April 15, 1927 3 Sheets-Sheet 2 INVENTOR EDWW EBARNEY WITNESSES BY QM 6 ATTORNEY March 7, 1933.

E. E. BARNEY TYPEWRITING MACHINE :5 Sheets-Shet 3 Original Filed April 13, 1927 INVENTOR EDVWN EBARNEY BYM @w,

ATTORNEY Patented Mar. 7, 1933 UNITED STATES PATENT OFFICE EDWIN E. BARNEY, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO REMINGTON TYPE- J WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK TYZPEWRITING MACHINE Original application filed April 13, 1927, Serial No. 183,466. Divided and this application filed Tune 16,

' 1928. Serial No. 285,884.

My invention relates to multiple-billing mechanism for typewriting machines, and has for its general object the'provision of a new and improved machine for handling multiform billing sheets of the character disclosed in the patent to E. Z. Lewis, #932,713, dated August 31, 1909, which sheets, interleaved with a reproducing medium, are wound on the platen of the machine, one complete wind or wrap being allotted to each separate form on the sheet, so that the number of forms to be printed at a single operation corresponds with the number of times the sheetis wound orwrapped on the platen.

The carrying out of my invention in practicable form has resulted in various detail improvements relating to the feed and control of the multiform work sheet or form sheet itself, the supplying, feeding and control of the reproducing medium or carbon sheet, and various safety devices for insuring the proper cooperation of inter-related parts, all as will hereinafter appear. I

This application is a division of my application Serial Number 183,466, filed April 13, 1927 and is directed more particularly to the means for feeding and controlling the reproducing medium and to the combinations of such means with other inter-related parts.

To the above ends my present invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the appended claims.

The principle of my invention Will be found adapted to various styles of writing machines, but the preferred form of the in vention, as illustrated in the accompanying drawings, has been applied to a #20 Remington type-writing machine.

In the drawings wherein like reference characters indicate corresponding parts in the different views:

Fig. 1 is a fragmentary, transverse vertical sectional view of a portion of the machine. the scction being taken on planes indi- ('atcd by the section line 11 in Fig. 2.

Fig. 2 is a full-sized side elevation of the carriage of the typcwriting machine with (lCVlCQS of my invention applied thereto.

ing mechanism operative by a handle.

Fig. 3 is a fragmentary, fore and aft vertical sectional view taken on a plane indicated by the section line 33 in Fig. 1.

Fig. 4 is a fragmentary, transverse vertical sectional view taken on planes indicated by the section line 44 in Fig. 2.

Fig. 4a is a detail, fragmentary, side view of parts of the structure.

Fig. 5 is a vertical front-to-rear sectional view taken on a plane indicated by the section line 5-5 in Fig. 1. 1

At all of the section lines arrows indicate the direction in which the view is taken In the drawings I have shown only SO much of the complete machine disclosed in the above mentioned parent application as is necessary to arrive at an understanding of the features of the present invention in their embodiment therein.

Referring first generally to the embodiment of the invention herein disclosed, there is mounted on standards projecting upward from the stand on which the typewriting machine is supported, a magazine or box, such for example as that shown in my above entitled application. Said magazine is adapted to contain a supply-of multiple-form sheets or work sheets. In the present instance each one of these separate sheets contains six printed forms or blanks, the sheets being folded transversely between each two of the forms. The forms are adapted to be withdrawn from the magazine by hand, one

by one, and introduced into the typewriting machine over a table or guide plate to a platen-carried clamp which at this time is disposed at the front side of the platen, so that they may be front-fed thereover.

Normally lying between the open clamp and the face of the platen is the free end of a reproducing sheet or carbon strip which is supplied from a carbon carrying roll which is connected by gearing to special platen tlll'lda1 handle is connected by gearing to the platen and is effective when actuated to close the clamp, thereby clamping the bottom edge of the bill sheet and through it the carbon paper to the platen and thereafter to turn the platen continuously in backward direction through a plurality of complete revolutions, thus winding thereon the bill sheet and the carbon sheet in interleaved relationship so that the type imprints will be reproduced on all of the bill forms at a single printing operation.

. cooperative relationship with the platen in' As soon as the bill is completely wound in place, paper feeding devices are thrown into may be line-spaced so as to advance the'writing to the next line and so on until the forms are completely written. Thereafter the handle is actuated to continuously rotate the platen forward and eject the multiform bill suitable magazine, (not shown),

sheet, the carbon at the same time being rewound on its holder. The operation above outlined is repeated for each multiple bill sheet. I

It has been found in practice that the chief problem in controlling multiple bill sheets of thetype herein used, together with a reproducing sheet, arises from the difficulty of obtaining accurate, smooth and uninterrupted feeding, and retraction of the sheets. I have provided various means for insuring such feeding and retraction, certain of which form the subject-matter of the present invention as will hereinafter appear. Among the means in question the following may be briefly referred to:

In order to compensate for the variation of diameter between the carbon supply roll holder as the carbon paper winds ofi it, and the platen, as the bill sheet and carbon paper wind on it, and vice versa, a spring connection or take-up is provided in the gear connection tween the carbon roll holder and the actuating handle. a

The above mentioned means and other devices cooperate to insure the proper operation of the mechanism and to produce a smooth accurate control of the bill and carbon sheets with a minimum of effort and also with the practical elimination of the danger of spiraling or inaccurate feeding, which is fatal in this style of work. These and other features of the construction will be re ferred to in the following detailed description.

The supporting frame on which the typewriting machine is mounted also supports a ample, as that shown in my above mentioned application. This magazine is fixedly supported above and in the rear of the carriage of the typewriting machine and contains a stack of multiple bill'forms. A bill form from the stack is displaced by the operator such, for ex- I roac es from the magazine and directed downward and forward over suitable guiding devices to the upper front face of the platen where an end of the bill form is grasped by a clamp carried K by the platen; as will hereinafter more clearly appear. 7

The main frame of the type writing machine comprises a top plate 21. Rising from the top plate are front and rear lugs 22 and 23 respectively to which are screwed stationary guide rails or track ways 24 and 25. These track ways are oppositely grooved and received antifriction rollers 26 which also cooperate with the front and rear cross bars 27 and 28 respectively of a carriage truck which further comprises right and left-hand side bars numbered respectively 29 and 30. A bracket arm 31 secured to the top of the truck at its right-hand rear corner is connected by a band or strap 31 with the usual carriage motor or spring drum 32, whereby the travelin g carriage, comprising the truck 27-30 to getherwith the various parts mounted thereon, is constantly urged leftward along the trackways 24 and 25. The parts of the typewriting machine thus far described are common to the #20 Remington typewriter.

Tn carrying out my present invention I provide a new style or construction of carbon roll holder and parts for controlling the same, all mounted on the truck or carriage. To provide mountings for these and other parts, supplementary end plates are mounted on the carriage truck. The right and lefthand end plates numbered respectively 33 and 34 are secured-respectively to the outer face of the end bars 29 and 30 by means of screws and dowel pins 35.

The platen, indicated as a whole by the reference numeral 36, is in the form of a hollow shell or tube preferably made of alumi num. Said platen, comprises a tubular body portion 37 to which are secured heads or end pieces, the righthand head being numbered 38 and the lefthand head 39. These heads are reduced at their inner ends to fit inside the tube 37 and are secured in place by screws 40. The heads 38 and 39 are provided respectively with outwardly extending huh portions 41 and 42 which are bored out to receive a platen shaft or axle 43, the hub 42 being secured to'said shaft by a screw 42. At its right-hand end portion, the axle bears in an enlargement or hub 44 which is fixed in the end plate 33. The left-hand end portion of the axle 43 bears in an enlargement or hub 45 secured in the end plate 34.

The portion of the axle projecting leftward beyond the bearing 46 of ordinary construction for turning the ,platen by hand, which wheel is secured in The outerend porplace by set screws 47 tion of the hub 42 is reduced in diameter and has suitably secured to it a gear wheel 48 for as best shown in Fig. 1,

45 carries a finger wheel positively connecting the platen with paper 1 feeding devices hereinafter described. The hub portion 41, of the right-hand platen head, is extended outward and formed with teeth 49 to provide a pinion that intermeshes with platen driving mechanism hereinafter described.

Fixedly connected with the pinion 49 is a line spacing wheel 51 so that the platen 36. hub 41, pinion .49 and line spacing wheel 51 are fixed toturn together.

The support for the line spacing wheel 51 constitudes a bearing for a line-spacing-pawl carrier 54, which carrier has a line spacing pawl (not shown) pivoted thereto and coacting with the line spacing wheel in the usual manner. A disclosure of the means for actuating the line spacing pawl from a suitable handle is unnecessary for the purposes of the present invention and has been omitted.

Cooperating with the ratchet wheel 51 is a.

roll detent 72 which is mounted at the forradial spokes 76 and a hub portion 7 7 ward end of a spring arm 73 that extends rearward and is secured by a screw to a projection that is integral with the bracket 31. The spring mounted roll-detent cooperates with the line space ratchet wheel to maintain the platen against accidental displacement when it is not under actuation and assure a proper line spacing position of the platen after each actuation.

In addition to the mechanism just described for turning the platen through line space distances, means are provided for turning the platen continuously through a plurality of revolutions, said means comprising speed-multiplying mechanism, next to be described.

Intermeshing with the pinion 49 is a driving gear wheel of comparatively large diameter, which is illustrated in Figs. 1 and 2 and which is of ordinary construction, comprising a rim provided with spur gear teeth 75, Said hub extends outward and bears at its outer end against a circumferential enlargement on a supporting sleeve or hub 78 which is riveted or otherwise fixed to the end plate 33. On the outwardly extending portion of the hub 77 is mounted a stop member which is in the form of asplit collar 79 fixedly secured to the hub by a clamp screw 80. Diametrically opposite to the split in the collar there is provided a radial extension 81 (Fig. 2) carrying an outwardly projecting lug or pin 82. which is adapted, at the end of the forward turning movement of the wheel, to contact with a stop lever and coacting means (not shown) to positively limit the turning in one direction of the gear wheel, the platen and connected parts.

The hub or collar 78 is bored out to receive a stub shaft 86. As best shown in Fig. 1, said shaft at its inner end terminates in an enlargement 87 which has a reduced extreme end portion 88, the enlargement 87 thus being in the nature of a flange. Fitted over the flange or enlargement 87 is a split collar 89,

which, as will be understood fromFig. 3, is a said gear wheel or driving member and se cured at its opposite end to a pin 98 on the collar 89, tends constantly to turn said collar and the stub shaft on which it is mounted in counter-clockwise direction, when viewed from the right, and to maintain the screw stop 93 in contact with stop pin 96.

The construction is such that if the shaft 8688 is turned in clockwise direction there will be a lost motion between it and the driving gear wheel 7577, the extent of which is measured by the distance between the stop 94 and the pin 96. In other words, the turning of the shaft will not affect the gear Wheel until the screw stop 94 contacts with the stop 96.

8688 a crank member or handle is provided comprising a crank arm 99, a hub 100, and a handle proper or finger piece 101. The hub is fitted over the projecting portion of the shaft 86, outside the end plate 33, and is secured to the shaft by a cross pin 102. It will 'be understood that when the handle 101 is turned, the shaft will be rotated, communicating movement to the collar 89, and thence through the lost motion connection to the driver or gear wheel 7577 and connected parts, thus turning the platen through the pinion 49 in a direction opposite to that in which the handle 101 is actuated. The stop devices,'including the part 82, will limit the turning movement of the gear wheel and platen when the platen is being turned to wind on a work sheet.

To limit turning movement in the opposite direction there is provided a device 103, (Fig. 3) which is mounted on the inner face of a disk or circular plate 104. Said device '103 is preferably in the form of a roll, which is adapted to rotate on a bearing pin fixed to and projecting leftward from the left-hand or inner face of said disk 104. The disk is mounted on the inner end of the shaft portion 88 and is held in fixed relationship with said shaft by a pin 100 (Fig. 1) which is fixed in the flange 87 and projects leftward therefrom, said pin engaging in a hole 107 in the disk 104, thereby fixing the relationship be- For the purpose of actuating the stub shaft.

tween the disk and the device 103 relatively to said shaft. Leftward displacement of the disk is prevented by a plate or arm 108 which is clamped against the end portion of the shaft part 88 by a clamping screw 109 having a large head, the construction being such that suficient friction is generated to prevent accidental displacement of the arm 108. Said arm near its outer end carries an actuating pin 110 which cooperates with paper feeding devices as hereinafter described.

Although they do not logically enter into the description at thispoint it may be well to state that there are other parts mounted and relatively adjustable on the shaft member 86-88 and which are disposed between the disk 104 and the split collar 89. Said parts have to do with means for automatically controlling or throwing into and out of use the line space detent roll 72, thereby lessening friction and promoting smoothness and ease of the continuous turning movements of the platen; with facilitating adjustments depending on the number of forms on the partigular bill sheets that are to be employed whether one, two or three or more forms are printed on the particular bill Sheets in hand, and also the number of lines to be written on each form or blank on. the bill.

These features are all disclosed in my above mentioned parent application, but are not claimed herein and a disclosure of them is unnecessary for the purpose of the present in- .vention, and further reference thereto will be omitted. Some of theparts relating to these features are not disclosed in the drawings of the present case.

It may be said at this point that the extent of sweep or continuous turning movement of the platen under the actuation of the handle 101, may be limited by varying the relationship between the device 103 and the stop 82, i

such variation being efiected by loosening the clamping screw 80 and turning the split collar 7 9 so as to vary the circumferential positions of the stop 82 relativelyto the device 103.

' Preferably, the driver or gear wheel 7 5+7 7 is provided with a circular shaped guard or cover plate 123 which is made of sheet metal and is provided with a flange to overlie the periphery of the wheel. The cover plate is provided with enlargements or bosses 124 which receive headed screws 125 whereby the cover-plate is secured to the side-plate 33 of the carriage frame. The cover-plate is disposed inside the plate 33 and spaced leftward therefrom by the bosses 124 so that said cover-plate is brought into the vertical planeof the gear wheel which it covers.

Referring now to the automatic paper clamp which is mounted on the platen, see

Fig. 5) the tubular platen body 37 is cast with an inwardly pro ectingrib-like part or enlargement 37 in which is cut a slot way 12 6 which extends longitudinally of the platen neoaoee and receives the bar-like or body portion 127 of the clamp which is adapted to slide radially in and out of the slot-way 126. Said clamp further comprises a clamping flange or lip 128 which is formed integrally with the body or bar 127 and projects rearward at right angles from said body outside the platen surface, to which the outer face of the lip is curved to conform. The inside or working face of the lip 128 is straight or flat and fits against the corresponding flat surface of an under-cut or depression 129 in the tube 37. The construction is such that when the clamp is closed it hugs the platen tightly and provides an unin-' 129 and the under. face of the lip 128, the

clamp will be projected. outward slightly away from the platen surface, but'not sulficiently to alter materially the regular continuity of the surface and the smoothness of the rotation of the platen will not be affected.

Outside the platen heads the bar portion 127 is provided at its lower ends with outward projections or lugs 130 which are somewhat elongated and are rounded OK so as to fit rotatively in round openings 131 formed in arms 132 which are pivoted at 133 to the associate platen heads. Each arm carries an outwardly projecting pin 135 over which is hooked a drawing-spring 136 anchored at its opposite end at 137 to the associate platen the platen, as shown in Fig. 5.

The clamp is automatically controlled, so

that it is opened to receive the work-sheet at the end of the rearward work-sheet ejecting movement of the handle 101, and thereafter is automatically snapped shut by the preliminary forward actuation of the handle 101, so as to clamp the paper to the platen before the winding-on operation starts. The automatic controlling means comprises a roll 138 pivoted at 139 to the upper portion of the righthand arm 132, said roll 138 being adapted to cooperate with a lip 140 inturned from the upper end of an arm 141 pivoted at 142 to the right-hand platen head 38. Through the roll 138 and the lip 140. the pressure of the spring 136 will be transmitted to the arm 1 41 and normally will maintain said arm in contact with a square stop pin 143 which projects rightward from the platen head 38. In order to open the clamp, the upper rear end of the arm 141 is adapted tocontact with a stop 144, which is formed by a forward projection at the lower end of a cam and stop member- 145. This member is preferably formed of a single piece of sheet metal. Its lower end portion is bent in the shape of a U tion 147 and the opposite portion of the body of the member 145 are perforated to fit over and bear rotatably on a stub shaft or rod 149,

which at its right-hand end is secured to the end plate 33 by a screw 150. Said shaft thence extends leftward and its inner end bears in an angular bracket 151 which is secured to the rear bar 28 of the carriage truck by screws 152. It may be said at this point that there are a pair of these brackets 151 arranged one near each end of the carriage. In order to complete the description of the member 145, it may be stated that it further (omprises a downwardly extending stop lug 153 and that the body of the member extends upward and terminates in a hook-like head 145 which is formed with an open'mouthed cam-slot 154 terminating in a dwell portion 155, the cam slot and the dwell fitting over and being adapted to cooperate with the roll or controlling device 103. The member 145 is adapted to be maintained in normal position by a coiled spring 156, (Fig. 3) the forward end of which is hooked over a lug on the member 145, the rear end of said spring being anchored to a bracket 157 which is clamped by the screw 74 against the upper face of the detent arm 73. The bracket 157 is provided with a curled bearin portion 158 which is tapped to receive an a ustable screw stop 159. Said spring 156 tends constantly to maintain the stop face 148 in contact with the forward end of the screw stop 159. The member 145 has pivoted to it at 160 a spring latch 161 having a tail portion which is connected by a draw spring 162 to the lug 145. This spring tends constantly to maintain a lip 163 bent horizontally from the forward end of the latch in engagement with a shouldered edge 164 on the top of the part 144. The front portion of the latch 161 terminates in an incline or cam edge 165.

Under normal conditions the member 145 will be held in the rear of the position shown in Fig. 3 with the stop 148 engaged with the stop 159. In the course of the ejecting rotation of the platen to unwind a written Work sheet, the roll or stop device 103 will be brought into engagement with the forward edge of the cam slot 154 and will swing the member 145 forward about its pivot 149 so as to bring the cam edge 165 and also the stop 153 into the path of the stop 143, which is being rotated in clockwise direction with the platen as the parts are viewed in Fig. 3. As the ejecting movement of the platen continues, the upper corner of the stop 143 will engage with the edge 165 and will swing the latch 161 up above its pivot 160 against the pull of the spring 162 until the latch rests on its rear face with the stop 153. As will be apparent in Fig. 3, the parts are so arranged that this effects an interlocking engagement between the square stop pin 143 on the one hand and the member 145 and latch 161 on the other hand. Meanwhile, as the pin 143 starts to engage with the cam edge 165 the arm 141 will engage at its upperrear end with the stop 144 so that as the turning movement of the platen continues the arm 141 will be forced forward about its pivot 142, causing the lip 140, acting on the roll 138,- to swing the arm 132 forward about its pivot 133 and thus force the clamp 127, 128 outward in its bearing. This operation it will be understood, is in opposition to the spring 136 at both ends of the platen. The parts are so proportioned and timed that after the member 145 has beencammed forward to operative position by the coaction of the roll 103 witli tlie cam slot 154, the roll will enter the dwell 155, so that the member 145 will remain stationary'during the opening of the clamp and the operation of the latch 161 including its snapping down in front of the pin 143. v

It will be understood that both the disk 104, Carrying the roll 103, and also the platen, were rotated from the handle 101, the platen through its connection with the drivin gear. With the clamp open, the paper may e inserted as hereinafter more particularly de' scribed and the mechanism is then ready to have the clamp closed in order to grip the paper to the platen, which thereafter is to be rotated in counter-clockwise direction, viewed from the right, in order to wind the paper thereon.

As has been stated, it is necessary to clamp the paper promptly before the platen begins to move and the mechanism described is effective for this purpose, as will be understood from the following. The paper having been inserted, pressure against the operative handle 101 is reversed, that is, it is pulled in clockwise direction, as viewed from the right, thus causing the roll 103 to move down out of the dwell 155, and act against the rear or .under edge of the cam slot 154, swinging the member 145 upward and rearward about its pivot so as to lift the stop 144 out of en gagement with the arm 141. Until this operation is completed, the platen will be held rigidly against the movement by the cooperation of the pin 143 with latch 161 and the stop 153. It will be apparent that as soon as the stop 144 clears the arm 141, the clamp will be snapped or forced down into clamping engagement by the action of its springs 136 into the position shown in Fig. 3. From I on the pin. It will also be apparent from an examination of Fig. 3 that this preliminary clamping operation is permitted to take place prior to any moving force being appliedto the platen because of the lost motion connection between the devices 93 and 9A and the pin 96. Positive rotary movement of the platen to wind on the paper will not take place until the pin 94 has moved downward into contact with the pin 96, thereby picking up the driver or gear wheel 7 5-77 and actuating it to rotate the platen.

It will be apparent that during the winding-on of the bill sheet, it will be positively connected to the platen and caused to be wrapped around the same primarily through the paper clamp 127, 128. After the bill has been written, however, and it is desired to.

eject it rapidly, the clamp is of no assistance, and accordingly there have been provided feeding devices which are thrown into effective position and positively connected to the with the bill to advance it during line spacing platen automatically when the platen approaches the end of the winding-on operation, so that the feeding devices may cooperate operations and also during the subsequent continuous ejecting operation.

As shown in Fig. 3, the paper feeding devices comprise knurled metal rolls 17 2 fixedly secured one near each end of a shaft 17 3 which extends longitudinally of the platen above the printing line, the rolls being so disposed as to cooperate with the face of the platen near its ends. The shaft 173 is mounted near its ends on a pair of downward curving arms 171 which at their lowerends are provided with outwardly extending collars 17 5 which fit over and are fixedly secured to a rock shaft 176 which bears at its ends in the plates 33 and 3 1 of the carriage frame. Crank arms 177 upstanding from the collars 17 5 are formed with holes through which are hooked the forward ends of draw springs 17 8. The rear end of the left hand spring is anchored to a pin 179 projecting inward from the side plate 34, while the rear end of the right-handspring 17 8 is anchored to an arm 58 (Fig. 2) integral with the bracket 58. The springs tend constantly to turn the shaft 17 '6 in a direction which will press the feed rolls 17 2 into engagement with the surface of the platen. Mounted on the left-hand end of the shaft 173, outside the arm 17 4, isa pinion 180 which lies in the same fore-and-aft plane as the gear 48 and is adapted to intermesh therewith when the feed rolls 172 engage with the surface of the platen or the paper thereon.

The construction is such that the feed roll shaft 173 is positively connected with the eeaoes' platen through the gear 48 and pinion 180, so that when the platen is turned, it will positively turn the feed or pressure rolls 172, causing them to coact to feed or advance the parearward from and are secured to a rock shaft 183 that bears in angular brackets 184 secured by screws 185 to the front part of the carriage.

A spring 183 coiled around the rock shaft and acting thereon, tends constantly to press the hooks or arms 182 downward. Secured to the right-hand arm 182 by. screws 186 is an upstanding finger 187 which at its upper end portion is ofi-set to lie in the path of the pin 110.

The operation of the means for automatically controlling the paper feeding mechanism is as follows :-When the clamp 127, 128 is opened to receive thework sheet it will act against the feed rolls 17 2 to force them away from the surface of the platen and cause the hooks 182 to snap down over the lugs 181 which will operate to maintain the feed rolls in inoperative position during the subsequentv winding-on of the bill. As the end of this winding-on approaches, the actuating pin 110 will engage with the finger 187 and will force it upward and forward about its pivotal center183, thereby lifting the locking books 182 and permitting the feed rolls 172 to be swung forward by the spring 178 into cooperative engagement with the platen at the same time that the pinion 180 engages the gear 48, The parts are so timed that this operation takes place approximately at-the end of the winding-on operation.

1 will now refer to the means for carrying and controlling the reproducing material, preferably carbon paper, which constitutes the means to which the present invention is more particularly directed.

The reproducing material or carbon paper, indicated by the numeral 197, is ordinarily supplied in roll form, being wound on a pasteboard core or tube 198. There is pro-. vided a tubular holder or carrier for the roll of carbon, said carrier or holder comprising a hollow tube or cylindrical body portion 199, within the ends of which are received heads or end pieces. The right-hand head 200 fits within the tube and is suitably vfixed in place,

it being formed with a hub portion 201 to fit,

or hearing for the roll holdand preferably formed with anumber of longitudinally extending kerfs or slits to promote resillency, so that the core 198 will frictionally engage with the projection 203, and will be held against accidental turning movements therein. The left-hand end of. the tubular body 199 is provided with a detachable head or end piece designated as a whole by the numeral 204. Said end piece comprises a head proper 205 having secured to its periphery a knurled ring or annulus 206. T he'head proper has integral with it an inwardly extending flanged portion 205. Also integral with the head is an inwardl extending hub portion 207, over which is tted and securely held an additional extension 208 which is likewise formed with longitudinal kerfs indicated at 209, thus dividing the extension into a number of resilient fingers which are curved at their free ends to provide a nose so as to engage readily with the core 198 and hold it frictionally. The detachable head 204 is adapted to engage with the tube 199 by a bayonet joint, and a latch is provided for preventing the joint from slipping accidentally. Said latch is in the form of a curved or arcuate spring arm 210 secured by a screw 211 to the inner face of the flanged portion of the head 205. The free end portion of the spring arm 210 projects outward through a slot 212 formed in the flange 205 and this outwardly projecting portion is adapted to be drawn inward by hand below the surface of the flange205 by means of a laterally extending finger piece 210, which is integral with the spring arm 210 and extends through a hole or slot in the vertical outer face of the head proper 205. The bayonet joint comprises a right angled or bayonet slot 213 formed in the left-hand end portion of the tube 199, said slot cooperating with a screw or stop 214 secured in the flanged portion of the head 205.

The construction is such that when the head and the tube are interlocked as shown in' Fig. 1, the spring arm or latch 210 projecting up.- ward through the slot 213 will prevent relative rotation of the parts such as would bring the screw 214 opposite the outwardly extending or mouth portion of the slot, so that the head could be detached. In order that separation of the parts may be accomplished, it

is first necessary to depress or withdraw the latch by pressing down on'the finger piece 210*.

Preferably the spring latch 210 is covered at the right by means of a disk 215 which is suitably secured to the inner end portion of the flange 205. The knurled annulus 206 affords a convenient means for turning the head 204 on the tube 199 so as to connect and disconnect them. It will be understood that when the roll holder has been detached from the machine as hereinafter explained, it is only necessary to remove the head 204 to enable a roll of carbonvto be inserted and its core 198 fitted over the projection 203 at the right, after which the head 204 may be replaced, the extension 208 fitting inside the core at the left, the core being thus suitably supported and the carbon roll housed inside the hollow cylindrical holder.. Said holder is formed longitudinally with a slot-way indicated at 216 open at the left, and of course in inserting the roll of carbon, care mustbe taken first to unwind sufficient of it to enable the unwound portion, to pass through the slot and be moved along rightward with the carbon roll as it is mounted in place in the holder, leaving the loose free end outside of e the slot 216. The cylindrical carbon holder is made preferably of aluminum and is of substantia ly the same diameter as the platen. It will be understood, of course, that the supply roll wound on one of the core pieces 198 is sufficient to write a large number of bill sheets. In making use of the device initially, it is intended that only an amount of carbon paper 197 be unwound from the roll and drawn outward through the slotway 216, which will correspond in length with the length of one of the multiple bill sheets, allowing for the distance from the roller or carrier to the platen. This free or unwound part of the carbon paper is wound on the outside of the tubular body 1990f the holder, and it will be understood that the number of winds or wraps of carbon thereon correspond with the number of winds or wraps of the bill sheet on the platen.

From what follows it will be seen that the carbon is wound on and off its carrier or holder in correspondence with the winding on and off of a bill sheet on the platen, so that the two sheets may be interleaved, en-

abling the carbon to reproduce impressions on all of the bill forms underlying the outer- 1 most form or wrap. It is the purpose of course to use the same unwound portion of the carbon until it is so far exhausted that it will not adequately offset on the bill sheet so as to make clear copies. When thus exhausted it is only necessary to withdraw through the slot 216 a fresh supply ofcarbon paper,

tearing off and discarding the used portion. By this construction the carbon carrying roll- I .er carrying the outside portion of the carbon and at the rear of the platen, being mounted 4 on a shaft 217 which is supported at its ends in the side plates 33 and 34. At its right hand end the shaft 217, is adapted to bear in a bearing hub or block 218 which is riveted or otherwise secured in the plate 33. In order, however,'that the carbon roll holder may be readily withdrawn from the machine, it is necessary to provide a difi'erent form of sup port for the left-hand end portion of the shaft 217 To this end the bearing hub 219 at the left is secured in a detachable circular plate or disk 220 which is shouldered, as indicated at 221, to fit in a circular hole or open-.

ing 222 formed in the plate 34:. The disk 220 is provided with a number, four in the present case, of round holes 223 whereby the disk may be conveniently grasped and manipulated. Secured to the inner face of the disk as by rivets 224: is a strap 225 projecting at its ends slightly beyond the shouldered por tion 221 of the disk, and these projecting portions are adapted to cooperate with the inner 225 in line or register with these openings 226, the dislr may be pulled outward and de tached from the plate 34, this removal of course carrying with it the bearing 219. The opening 222 is of suflicient diameter to enable the carbon holderto be withdrawn through it. lln order to hold the holder and the detachable bearing, comprising the bearing proper 219 and the disk 220, in proper re ationship, said bearing is formed with a circular groove indicated at 227 into which is adapted to lit a curved plate 228 which is se cured by screws 229 to the head 205 in such away as to be ofiset slightly to the left of the outer face of said head and so as to register with and engage slidably in the groove 227. It will be understood that when the circular plate is engaged with the groove, the two parts are properly in register and connected together and may be applied to and removed from the bearing shaft 217 at one operation.

As has been stated, the platen and the carbon holder or rotary carrier are of the same diameter. The carbon holder is connected to the main driving gear and 77 by the same sized pinion as employed for the platen connection, and consequently the "holder is driven or rotated at the same speed as the platen. However, at the start of the winding-on operation theplaten is bare and the holder is increased in diameter by the thicknesses of carbon paper wound on the outside of the tube 199. As a consequence, as the diameter of the platen increases through the windingon of the paper and interleaved carbon, and

the diameter of the carbon holder lessens by the winding 0d of the carbon paper, there would occur a pull on the carbon between the holder. and the platen, which would tend either to act as a drag or brake on the mechanism, or might result in rending or tearing the carbon. To avoid this defect, there is provided a yielding connection between the neoaoea carbon'holder and its connection with the driving gear.

Said yielding connection comprises a pawl carrying member 230 which is fitted loosely over the shaft 217v at the right of the carbon holder and is provided at diametrically opposite ends with leftwardly extending teeth or pawls 231 which are adapted to engage between the teeth of thecrown gear wheel 202. Said pawl carrier is constantly urged leftward into engaging position by a spring 232 coiled around the shaft 217. The left ward effect of the spring is limited by a collar 233 fast on the shaft 217 and interposed between the hub 201 and the pawl carrier 230. The

spring 232 is interposed between the pawl carrier and a spring drum or box 234 which is slidably mounted on the shaft and comprises an inner hub 235 and. an outer flange 236. Fitted over and bearing rotatably on the hub 235 as well as partly on the shaft 217, is a pinion 237. Inside the drum. 23 i is arranged. a coiled band spring 238 one end of which is connected to the tlange 236 of the drum, and the opposite or inner end to the pinipn 237. This spring tends constantly to turn the pinion forward relatively to the drum and to maintain a radial stop pm 239 on the pinion in contact with a stop pin 240 projecting radially inward from the inside of the flange 236 of the drum or housing an. lln other words, the driving pinion is thus provided with a yielding or resilient connection with the drum 234:. The drum is connected with the pawl carrier 230 so as to cominunicate motion through it to the carbon holder by means of a pair of leftwardly pro- }ecting pins 241 which are secured diametrically opposite each other to the left-hand end of the drum 234: and engage loosely in slots 24:2 in the pawl carrier 230. Heads 243 on the left ends of the pins 241 are disposed to the left of the pawl member 230, these heads being of suficient diameter to prevent disconnection of the pins from the pawl carrier while permitting some freedom of longitudinal movement of the pawl carrier and also relative movement between the drum 23d and the pawl carrier lengthwise of the shaft 217. A flanged ring 244: is driven on the pinion 237 to the right of the-spring 238 and provides a suitable closure for the righthand end of the spring drum 234:. When the parts are assembled in place, as will be understood from Fig. 4, the right-hand end of the pinion 237 abuts against the stationary bearing hub 218, thus in efiect causing the spring 232 to re-act against the pawl memher 230 and maintain its teeth engaged with the gear teeth 202. The shaft 217 at this time is held against longitudinal movement by a screw stop 245 which is threaded into the hub 218 .and coacts with a flange 246 on the shaft, said flange forming the right-hand side of a groove or depression 247 in the shaft,

the constructionbeing such that the shaft has endwise play equivalent to the width of the groove 247. With the parts positioned as shown in Fig. 4, it will beunderstood that the pinion 237 intermeshes with the driving gear 7 -.77 (Fig. 2) and that motion will be transmitted to the carbon roll carrier from the driving gear by the train of mechanism as the shaft in its abnormal position. The lever member 249 is pivoted on the outside of the end plate 33 at 250 and has a limited movement on said pivot equal in extent to the play of a pin 251 carried by said lever member in Y a slot 252 (Fig. 2) cut in the end plate and of the shaft bear detachably in clips 261,.

with which said pin engages. A flat spring 253 having an ear 254 secured by a screw 255 to the inside of the end plate bears at its free end on the pin 251, tending constantly to press down the engaging end of the lever member 249, the construction being such that the lever member or deten-t will snap into the groove 248 as soon as it is exposed, thus locking the shaft 217. The forward end portion of the lever member is provided with a cam face 256 which is adapted to be engaged by a pin 257 projecting inward from the handle arm 99, so that if the operator should neglect to release the detent, the pin will operategauto5 matically to depress its front end and swing up its rear end during the initial stage of movement of the handle 101, thus automatically releasing the shaft which will be pressed leftward by the spring 232 to reconnect the driving mechanism with the carbon roll holder. The purpose of pushing the shaft 217 rightward is to cause the collar 233 fixed thereto to act against the pawl carrier 230, pressing it rightward, compressing the spring 232, and disconnecting the teeth 231 from the gear202 so as to leave the carbon holder free to be rotated in orderthat a fresh supply of carbon may be drawn from the inside of the holder and wound. on its outer surface.

{In order to guide and feed or unwind the carbon paper smoothly off the outer surface of the roll holder, a feed roll mechanism is provided, whiclras best shown in Figs. 4, 4a

and 5, comprises a roller proper 258'made of yielding material and mounted on a shaft 259 which is provided with flanges 260 to confine the roll 258 in place. Theouter end portions which are formed at the end portions of a arms 151 (see Fig.

unitary sheet metal support 262 that has a limit rotary movement on a pivot 263 riveted or otherwise secured to the lower central portion of a yoke 264, which yoke has secured to it by screws 265 a curved clamping plate 266 that embraces a rod or shaft 267 bearing at its ends in the end plates 33 and 34. By removing the screws 265, the yoke may be'separated from the bearing plate and detached from the machine, carrying with it the support or clip carrier 261, 262 and the roll 258. The clip carrier 262 is prevented from being detached from its pivot 263 by a cross pin 268.

Interposed between the clip carrier and the yoke 264 at opposite side of the pivot are small bearing balls 269 which interseat in depressions formed oppositely in the two opposing parts, these depressions being so shaped as to permit a slight movement of the clip carrier and feed roller 258 about the pivotal center 263. This permits the roller to seat properly on or against the carbon roll holder to cause the parts to properly coopcrate-when the roll holder is turned to feed or advancethe carbon paper.

Spring pressure is transmitted to the roller 258 from the shaft 267 on which the yoke 264- is rigidly secured by the screws 265 and clamplng plate 266. This spring pressure is obtained from spring means cooperating with the left-hand end portion of the shaft,

see Figs. 4 and 4a. Secured to the rojectlower end of the crank arm 270 has secured i to 1t one end of a coiled spring 273, the op posite end whereof is secured to'the pivot of a latch piece 274 pivoted to the outside of the end plate 34 at 274 and notched at 274 to engage with a pin 275 on the crank arm to hold the shaft and the carbon feed roller out of operation when desired. Ordinarily the effect of the s ring 273 is transmitted through the sha t 267 to the roller 258 to press it against the carbon roll holder or the carbon paper thereon. v

The-forward end ortions of the bracket 58 are twisted vertically and terminate in headlike portions 151 having inclined faces 276. Pivoted at 277 on the inner faces of the heads 151" are ears 278 bent down from the end portions of a guide plate 279 which rests on'pins 280 projecting inward from the heads 151". The guide plate 27 9 serves to receive md support t e free end portion of the carbon paper 197 as it passes downward and. forward from between the roll 125 is left so that it will lie in position to gill 1'3" into or just back of the space between the clam 128 and the coacting surface 129 when the c amp is opened to receive the work sheet. 7

This will be best understood from a consideration of Fig. 5.

The work sheet having been, as heretofore stated, withdrawn at its feeding-in end portion from the magazine is led down to the platen over aper guiding devices which con stitute in elect a chute and comprise an inclined sheet metal plate or table. The body portion or plate 282 of the table is of a width to accommodate the sheets commonly employed in practice. Mounted on the upper face of the body or plate proper282 are right and left side guides or plates 283 having a relative adjustment one towards the other so as to provide the correct width for the passage of the work sheet as it is guided downward.

The whole construction is designed to guide the down-coming work sheet or form lightly and evenly over the table 282. So guided the lower end portion of the sheet will be brought into position to be engaged by the clamp 127, 128 when it is opened and in the position shown in Fig. 5.

The table member 282 rests normally at its lower end on the inclined faces 276 of the brackets .151, 151. The paper table as a whole is pivotally supported on the cross rod or shaft 267 and to this end is provided at its rear side with bearing blocks or projections 293 which terminate in outwardly extending hubs 294 (see Figs. 4 and 4a) which fit over said rod and ever end pieces 295 which prevent lateral displacement of the paper table on its pivotal support. The end pieces 295 and hubs294t are held rigidly united to turn onthe shaft 267 by screws 295 Said table is normally held in operative position by means of detent members 296 rigid with said end pieces and formed with notches 297 and 298 to accommodate detents 299 mounted at the ends of a rock shaft 300 pivoted in the end plates 33 and 34. Normally the detents 299 engage with the notches 297, holding the table in operative position.

A coiled spring 301 (Fig. 4) holds the detents in engaging position. The right-hand detent 299- is provided with a finger piece 302 whereby the detents may be withdrawn from the notches 297, permitting the paper table to be thrown back about its pivotal axis, the detent notches 298 engaging with the detents to hold the paper table in its thrown-off position, thus exposing the underlying mechanism. The rear sides of the notches 298 are so shaped that the paper table may be pulled forward to restore it to normal position with-' out requiring any manipulation of the detents 299 through the controlling finger piece 302. i

The paper table 282 also provides guiding devices for receiving the work sheet after it has been written and as it is fed off the platen during the continuous ejecting movement thereof, as disclosed in my application here- 'inbefore referred to but which it is unneces- .billing mechanism constituting the invention the operator brings the lower or bottom edge of the multiple-bill sheet in position to be gripped by the platen clamp. As has been explained, the free end of the carbon 197 overlying the guide plate 279 behind the table 282 will have its free end in line with the free end of the bill sheet and behind the same. The clamp 127,- 128 will then be opened through the cooperation of the parts, including the arm 141, as has beenexplained. In order to afford full stroke of said arm the hub 41 may be grooved as indicated at 41 in' Fig. 3. A continuation of this groove makes a passage-way for the spring 136. Assuming that. the clamp 127, 128 is open and in the position shown in Fig. 3, the free ends of the bill and carbon sheets may be introduced between the clamp and the platen face, and then the handle is pulled forward, giving a continuous rotation to the platen sufiicie'nt to rotate it in the present instance through approximaely six revolutions so as to wind six plies of the paper with the interleaved carbon around the platen.

As has been explained, the platen when arrested will present the outer bill sheet in position to have the first line thereon written. As is well understood the writing will take place through the actuation of the usual printing instrumentalities and ribbon mech anism of the standard Remington machine not herein disclosed but of regular construction. As the first line is written the carriage will, with the parts mounted thereon, space leftward step-by-step under the control of the usual escapement devices not herein shown, and when the end of the line is reached, the carriage will be restored from left to right and the platen line spaced, as has been explained, by actuation of the usual line space handle. The second and subsequent lines are thereafter written, the platen being line spaced in between, all as heretofore explained. It will be understood that each character written on the outer ply of the sheet through the ribbon will be duplicated on each of the five underlying bill forms or blanks through the carbon paper or transfer material 197.

The writing of the bill having been completed, the carriage will be restored from left to right and the handle 101, when actuated, will turn the platen forward continuously to eject the bill. This ejection will be assisted 5 by the pressure rolls 172.. At the same ,time that the platen is operating to eject the bill, the carbon roll holder will be positively turned to rewind the carbon paper thereon, the spring connection comprising the spring 10 238 being effective to take up'any slack due to the variation in the diameters of the platen and the roll holder, just as such spring connection operated in. the winding-on opera-,

tion to yield to prevent the tearing or rending of the carbon paper. As the billsheet is retracted, it will be received in the receiving guide or paper holder. As has been described the platen clamp opens automatically to release the written bill sheet which may then the clamp also operating tothrow off the pressure rolls 172 and lock them in inoperativeposition.

'The operation above outlined may be repeated with each bill sheet. It will be understood that in writing a bill, the tabulating mechanism and other devices associated with the Remington typewriting machine may be conveniently employed at the will of the operator.

In practice it wouldbe difficult to insure that the lower free end of the carbon paper should be so adjusted that it would always enter the opening between the clamping jaw 128 and the platen when the clamp is open. It will be borne in mind, however, that the carbon paper is positively advanced by the driving mechanism, and hence its free end will almost immediately be confined 0r clamped, so to speak, betweenthe platen surface and that portion of thework sheet itself which lies just behind the clamped or positively held end of said sheet.- It is, in fact, immaterial whether or not the carbon paper itself has its end caught beneath the clamping jaw 128. since it will be bound to the platen by the overlying work sheet. 3 The toothed wneel 202 and the cooperating toothed member .230, 231 afl'ord means for advancing a fresli portion of carbon from the supply roll equal to a fractional line space extent so that the carbon may be written on between the lines first exhausted, thereby promoting even and complete exhaustion of the carbon sheet.

When in the accompanying claims I make use of such expressions as continuously winding a work sheet and carbon strip together w m a: a; on and for unwinding them off the platen I mean that there is a winding of such sheet and strip completely around the platen or an unwinding thereof off the platen, and not merely a feeding thereof to B5 and from the platen in the ordinary manner be removed, the outward releasing action ofv without-such sheet and strip at; any time encircling the latena Various 0 anges of construction may be I made without departing from my invention as it is defined in the accompanying claims and various features of the invention may be separately employed.

What I claim as new and desire to secure by Letters Patent, is

1. The combination of a cylindrical platen, a cylindrical carbon holder of the same diameter as the. platen whichfreceives within it a roll of transfer material and has wound around the outer surface thereofv a strip of such material projecting from the roll sufficient only for use in the work being produced, a hand actuated driving gear wheel, connections between said platen and said driving gearwheel, and yielding connections between said carbon holder and said gear wheel. Y 1

2. The combination of a cylindrical platen; a cylindrical carbon holder of the same diameter as the platen; means for continuously winding a work sheet and carbon strip together to a predetermined extent on and for unwinding them off said platen and for winding the carbon strip on and unwinding it off the carbon holder to a predetermined extent, said means comprising a main driving gear, a manually controlled handle for 'actuatin said gear first in one direction and then in t e opposite direction, a pinion interdiameter as the platen; means for continuously winding a work sheet and carbon strip together to a predetermined extent on and for unwinding them off said platen and for windin the carbon strip on and unwinding it oflt' t e carbon holder to a predetermined extent, said means comprising a common driving means for the platen and the carbon holder, and yielding connections between said carbon holder and said driving means ineffective to exert a restraining force against the feed of the carbon strip until the carbon strip and work sheet have been wound on and increased the diameter of the platen due to such windingz.

4. The combination of a cylindrical platen; a cylindrical carbon holder of the same dfiameter as the platen; and means for continuously winding a work sheet and carbon strip together to a predetermined extent on and for unwinding them off said platen and for winding the carbon strip onand.unwinding it oil the carbon holder to a predetermined eXtent, said means comprising a common driving means for the platen and the carbon holder, and driving connections be tween said carbon holder and said. driving means including yielding means that come into play to compensate for the variations in the diameter of the platen due to the windings thereon, said driving connections and yielding means comprising a'pinion driven by the common driving means, a rotative spring drum, a stop rigid with said spring drum, 1., cooperating stop rigid with said. pinion to positively drive the spring drum, a toothed wheel rigid with said carbon holder, a toothed member cooperating with said toothed wheel, and connections between said toothed member and said spring drum.

5. llhe combination of a cylindrical platen; a cylindricalcarbon holder; and means for continuously winding a work sheet and carbon strip together to a predetermined extent on and for unwinding them off said platen and for winding the carbon strip on and unwinding it off the carbon holder to a pre determined extent, said means comprising a common driving means for the platen and the carbon holder, and connections including yielding means between said carbon holder and said driving means comprising a pinion driven by the common driving means, a rotative spring drum, a spring therefor connected at one end to said driving pinion a stop on said drum, a cooperating stop on said pinion, a toothed wheel rigid with said carbon holder, a toothed member cooperating with said toothed wheel, connections between said toothed member and said spring drum comprising a pair of pins carried bv said spring drum and on which said toothed member is slidably supported, and a spring interposed between said toothed member and said spring drum and constantly tending to maintain said toothed member engaged with said toothed wheel.

6. In carbon roll mechanism, the combination of a platen, a carbon holder, a shaft shiftable in the direction of its length independently of the carbon holder and on which said holder is supported and beyond the ends of which said shaft extends, hand actuated driving means for turning said shaft a plurality of revolutions and also for turning said platen, disconnectible connections between said carbon holder and said driving means comprising a toothed wheel rigid with said carbon holder and a toothed member normally engaging with said toothed wheel, and operativc connections between said shaft and disconnectible connections. whereby the independent longitudinal shifting of the shaft controls the connections to connect and disconnect the carbon holder and driving means without displacing or dismantling said carbon holder.

incense 7. In carbon roll mechanism, the combination of a carbon holder, a shaft therefor, driving means, and disconnectible connections between said carbon holder and said shaft comprising a toothed wheel and a toothed member normally engaging with said toothed wheel and adapted to be driven from said shaft, said shaft being operatively connected to said toothed member and movable endwise to effect the disconnection of the toothed member from said toothed wheel, latching means for maintaining said shaft in position when thus moved endwise, and means operating automatically when said driving means is actuated for releasing said shaft from the control of said latching means 8. The combination of a cylindrical carbon holder, a shaft therefor, driving means for said carbon holder, disconnectible connections between said driving means and said carbon holder, latching means for maintaining said connections disconnected, and means actuated automatically by an operation of the driving means to release said connections from the control of said latching means.

9. The combination of a cylindrical carbon. holder, a shaft therefor provided with a groove, driving means for said carbon holder, connections between said driving means and said carbon holder and disconnectible by an endwise movement of said shaft, latching means for maintaining said connections disconnected, and means actuated automatically by an operation of the driving'means to release said connections from the control of said latching means, said latching means comprising a spring pressed arm cooperative with the groove in the shaft when the latter is moved endwise.

10. The combination of a cylindrical carbon holder, a shaft therefor having a groove and movable endwise, driving means for said carbon holder, disconnectible connections between the driving means and said carbon holder, latching means for maintaining said connections disconnected comprising a spring pressed arm having a cam and cooperative with the groove in the shaft when the latter is moved endwise to disconnect the connections, and an actuating pin on the driving means co-operative with the cam on said arm to throw it out of the groove in the shaft and thus automatically release the latching means.

11. In a typewriting or like machine, the combination of a holder for carbon paper and the like comprising a rotatively mounted tubular body portion in which a roll of carbon paper is contained and from which it may be bodily removed, and end pieces or heads for said cylindrical body portion and one of which is detachably secured thereto to enable the roll of carbon paper to be inserted in or removed from said body portion, each end iece being provided with an inwardly pro- ]ecting paper roll support that is separate and to be wound onto said surface as the holder turns in the opposite direction. i

' to be wound onto said surface as-the holder 12. In a typewriting or like machine, the combination of a holder for carbon paper and the like comprising a rotatively mounted tubular body portion in which a roll of carbon paper is contained and from which it may be bodily removed, and end pieces or heads for said cylindrical body portion and one of which is detachably secured thereto to enable the rollof carbon paper to be inserted in or removed from said body portion, each end piece being provided with an inwardly projecting paper roll support provided with spring fingers to frictionally engage the interior end portions. of the coreof the roll of carbon paper; and means for causing that portion only of the carbon paper that is outs de of the holder to be unwound off of the outer surface of said holder as the holder turns in one direction and turns in the opposite direction. v

13. In a typewriting machine, a rotative holder for carbon paper or the like comprising a tubular body portion and end ieces one of which is detachably secured to sald tubular body portion, each end piece being provided with an inwardly projecting paper roll support disposed coaxially wlth said tubular body portion and that is separate from the support on the other end piece, said body portion being provided with a longitudinal slot through which the free end of the paper is adapted to be drawn outward from the roll housed within said body portion and wound on the oute'r'surface thereof, and means for causing that portion only of the carbon paper that is outside of the holder to be unwound off of the outer surface of said holder as the holder turns in one direction and to be wound onto said surface as the holder turns in the opposite direction.

14-. In a typewriting or like madhine, the combination of a carriage, a platen carried thereby, and means on the carria e for supporting a roll of carbon paper or feeding movement of the carbon paper to and from the platen comprising a rotative cylindrical body portion within which a roll of carbon is contained and from which the roll may be bodily removed, and heads at the ends of said body portion, one of said heads being detachably connected with said body portion by a bayonet joint, the rotative movement of said cylindrical body portion feeding the carbon. to and from the platen.

15. In a typewriting or like machine, the combination of a carriage, a platen carried thereby, and means on the carriage for supporting a roll ofcarbon-pap for feeding movement of the carbon paper to and from the platen comprising a rotative cylindrical body portion within which a roll of carbon is contained and from which the roll may be bodily removed, heads at the ends of said body portion, one of said heads being detachably connected with said body portion by a bayonet joint, and a spring pressed latch nor-- mally preventing said joint from being broken, the rotative movement'of said cylindrical body portion feeding the carbon to and from v the platen.

16. The combination of a carriage ofa typewriting machine provided -with end plates, a cylindrical carbon holder, a shaft therefor, bearing devices on said end plates I for said shaft, one of said bearing devices being secured in a detachablecircular portion of the associate end plate, said detachable portionbeing normally latched to the body of the end plate for ready detachment therei from and being of a diameter greater than that of the carbon holder whereby the carbon holder may be withdrawn through the opening left when said circular portion is detachc d.

17. The combination of a carriage provided with end plates, a cylindrical holder for carbon or other paper, a shaft therefor, bearing devices on said end lates forsaid shaft, one of said bearing devlces being secured in a detachable portion of the associate end plate, said last mentioned bearing device being formed with a groove enga cable by a. plate attached to the adjacent en of the carbon holder. i

18. The combination of a carriage, a cy lind'rical platen on said carriage, a cylindrical carbon holder on said carriage, an mclined guide plate for carbon paper led from said carbon holder, a feed roller cooperative with the surface of the carbon holder to guide and feed the paper wound on the outer surface of said carbon holder, a feed roller carrier, a support on which said feed roller carrier is mounted, and ball bearings interposed between said carrier and said support;

19. The combination of a carriage, a cylindrical platen on said carriage, a cylindrical carbon holder on said carriage, a feed roller cooperative with the surface of the carbon holder, a carrier for said roller, a sup.-. port on which said carrier is mounted, and ball bearings interposed between said car rier and said support, said support being pivotally mounted so that the feed roller may be released from the carbon holder.

20. The combination of a cylindrical platen and a cylindrical carbon holder of substantially the same diameter as said platen and which receives within it a roll of transfer material and has wound around the outer surface thereof a strip of such material projecting from the roll sufiicient for use in the work being produced.

21. The combination of a cylindrical platen, a cylindrical carbon holder of substantially the same diameter as said platen and which receives within it a roll of transfer material and has wound around the outer surface thereof a strip of such material projecting from the roll sufficient for use in the work being produced, and means for winding such material together with a work sheet around the platen a plurality of turns and for simultaneously controlling the feed of the transfer material on and off the outer surface of said carbon holder substantially at a rate depending on the extent of windings till! around the platen.

22. The combination of a cylindrical platen, a cylindrical carbon holder of substantially the same diameter as said platen and which receiveswithin it a roll of transfer material and has wound around the outer surface thereof a strip of such material projecting from the roll sufficient for use in the work being produced, means for turning said carbon holder and the carbon roll contained therein together, and means for affording an independent turning movement of the carbon roll to bring a new strip of transfer material into use.

23. The combination of a cylindrical platen, a cylindrical carbon holder of substantially the same diameter as said platen and which receives within it a roll of transfer material and has wound around the outer surface thereof a strip of such material projecting from the roll sufficient for use in the work being produced, means for winding such material together with a work sheet around the platen a plurality of turns and for simultaneously controlling the feed of the transfer material on and off the outer surface of said. carbon holder substantially at a rate depending on the extent of windings around the platen, and means for affording an independent turning movement of the carbon roll contained within the roll holder in order to bring a new strip of transfer mate rial into use.

24:. The combination of a cylindrical platen, a cylindrical carbon holderof substan tially the same diameter as said platen and which receives within it a roll of transfer material and has wound around the outer surface thereof a strip of such material projecting from the roll sufficient for use in the work being produced, a hand actuated gear, and operative connections between said hand actuated gear and the platen and between said gear and the carbon holder for driving both the roll holder and the platen at a substantially uniform rate.

25. The combination of a cylindrical platen, a cylindrical carbon holder of substantially the same diameter as said platen and which receives within it a roll of transfer material and has wound around the outer surface thereof a strip of such material project- 'ing from the roll sufficient for use in the work being produced, a hand actuated gear, oper ative connections between said hand actuated gear and the platen and between said gear and the carbon holder for driving both the roll holder and the platen at a substantially uniform rate, and yielding connections included in the operative connections between said hand actuated gear and said carbon holder.

26. The combination of a cylindrical platen, a cylindrical carbon holder of the same diameter as the platen, and means for continuously winding a worlc sheet and carbon strip together on and -around the platen to a predetermined extent and for unwinding them off said platen and winding the carbon strip on and unwinding it off the carbon holder to a predetermined extent, said means comprising a handle operable by hand in first one direction and then in the other to effect such winding and unwinding of the work sheet and carbon strip, and operative connections including driving gearing controlled alone by said handle and effective on the platen and carbon holder.

27. The combination of a cylindrical platen, a cylindrical carbon holder of the same diameter as the platen, and means for continuously winding a work sheet and carbon strip together on and around the platen to a predetermined extent and for unwinding them off said platen and winding the carbon strip on and unwinding it off the carbon 'holderto a predeterminedextent, said means comprising a handle operable by hand in first one direction and then in the'other to effect such winding and unwinding of the work sheet and carbon strip, operative connections including driving gearing controlled alone by said handle and effective on the platen and carbon holder, and a yielding connection in the operative connections between said handle and carbon holder.

28. The combination of a cylindrical platen, a cylindrical carbon holder of the same diameter as the platen, and means for continu ously winding a work sheet and carbon strip together on and around the platen to a predetermined extent and for unwinding them off said platen and winding the carbon strip on and unwinding it off the carbon holder to a predetermined extent, said means comprising a handle operable in first one direction and then in the other to effect such winding and unwinding of the work sheet and carbrgnn strip, driving means between said handle and the carbon holder and between the handle and the platen including a spring in the connections between the handle and carbon holder, and means by which said spring is' rendered normally ineffective to exert its force tinuously winding a work sheet and carbon strip together to a predetermined extent on and for unwinding them off said platen and for winding the carbon strip on and unwinding it 0d the carbon holder to a predetermined extent, said means comprising a common driving means for the platen and the carbon holder, and driving connections between said carbon holder and said driving means including yielding means that come into playto compensate for the variations in the diameter of the platen due to the windings thereon, said driving connections and yielding means comprising a pinion connected to the common driving means, a rota- 5 tive drum, a spring contained within said drum and having one end connected to said drum and its other end connected to said pinion, a stop rigid with said drum, a cooperating stop rigid with said pinion to positively drive'the spring drum, a toothed wheel rigid with said carbon holder, a toothed member cooperating with said toothed wheel, and connections between said toothed member and said spring drum.

30. The combination of a cylindrical platen, a cylindrical carbon holder, and means for feeding the carbon holder to bring the free unattachedend of the carbon strip to the platen for connectionthereto and for thereafter continuously winding a work sheet-and the carbon strip together on and around the platen to a predetermined extent and for unwinding them 0d the platen, said means comprising a mainmanually actuated driving member, positively driven actuating connections between said main actuating member and the platen, and actuating cop-n nections between said main driving member and the carbon holder including yielding means, and means that cause said holder to be positively driven from the main driving member in advancing the carbon sheet to the platen but enable the carbon holder to advance relatively to its main driving member when the diameter of the platen due to the winding of the carbon strip and work sheet thereon is increased.

31. The combination of a carbon holder,

, driving means therefor, means operable at will for efiecting a disconnection between the carbon holder and its driving. means, and means operating automatically on an operation of said driving means for reestablishing a connection between said carbon holder and its driving means.

32. The combination of a carbon holder, driving means therefor, means operable at will for effecting a disconnection between the carbon holder and its driving means, and means controlled by said driving means and operable automatically at the first part of the operation thereof-for reestablishing a connection between said-carbon holder and its driving means.

33. The combination of a carbon holder,

driving means therefor including a manually actuated handle having a lost motion connection with other parts of said driving means, means operable at will for effecting a disconnection between the carbon holder and its said driving means, and automatically operatingmeans' actuated by said handle while its lost motion is taking place to reestablish connection between said driving means and the carbon holder.

34. The combination of a carbon holder, a shaft on which said carbon holder is mounted and which is shiftable longitudinally independently of said carbon holder, driving means'for the carbon holder, means controlled by the longitudinal shifting of said shaft for effecting a connection or disconnection between said carbon holder and its driving means, and automatically operating means for bringingabout a connection between said' carbon holder and its driving means before that part of the driving means which directly connects with the carbon holder can be actuated. M

3 5. The combination of a carbon holder, a shaft on which said carbon holder is mounted and which is shiftable longitudinally independently .of said. carbon holder, driving means for the carbon holder, meanscontrolled by the longitudinal shifting of said shaft in onedirection for efiecting a disconnection between the carbon holder and its driving means and for effecting a connection between them by a movement of the shaft in the opposite direction, a spring which tends to shift said shaft in one direction, a latch which looks the shaft against shifting movement under the force of said spring, andmeans acting automatically on .an operation of said driving means for releasing said latch.

36. The combination of a rotatively mount ed slotted cylindrical roll holder containing lid therein a roll of surplus transfer material'- not in use, the continuation of the transfer material which is actually in use at any one time extending through the slot in said roll holder and being wound on and-0d the outi side thereof, whereby the diameter of the roll holder is never increased due to the wind- I ings of the transfer material thereon to a greater extent than the amount of such mate rial in use and regardless oi. the amount of transfer material on the roll contained within the holder, the slot in said cylindrical. roll. holder extending longitudinally to one end thereof to en able the carbon roll to be inserted or withdrawn from said holder axially thereoi? and at such time enable the transfer material to pass sidewise along into and out out said slot, and means for rotating said roll holder torward and back to wind the transfer material on and oil the outside of said holder.

38. A rotatively mounted carbon holder comprising a longitudinally slotted cylindrical body portion receiving therein the reserve supply only of carbon paper and hav ing that portion only of the carbon paper which is in use extending from said reserve supply through the slot in said holder and wound around on or unwound from the outer surface only of said cylindrical body portion by a rotative movement of the latter, two heads or end pieces for closing the ends of said. cylindrical. body portion and one oil which is detachably connected thereto, each head having a carbon paper roll support that is separate from the support on the other head and projects inwardly within said. cylindrical body portion, and means for turning said cylindrical body portion.

39. The combination of a carriagaa cylindrical platen carried thereby, a rotatively mounted cylindrical carbon roll holder canried by the carriage and of substantially the same diameter as the platen and having means for supporting a surplus roll of carbon paper therein and for enabling a strip of carbon paper from said roll suificient for use at any given time to be wound around the outer surface of said holder, means for detachabl connecting the free end of said strip to t e platen so that it may be wound around the platen with a work sheet as the strip is wound oil the roll holder, and means for turning said roll holder and platen.

40. The combination of a carriage, a cylindrical platen carried thereby, a rotatively mounted-cylindrical carbon roll holder car-- ried by the carriage and of substantially the same diameter as the platen and having means for supporting a surplus roll of carbon paper therein and for enabling a strip of carbon paper from said roll suficient tor neoaoss use at any given time to be wound around the outer surface of said holder, means for detachably connecting the free end of said strip to the platen so that it may be wound around the platen with a work sheet as the strip is Wound oil the roll holder, a hand actuated driving device, connections. between said driving device and said platen, and intermediate driving means between said driving device and roll holder for positively turning the latter until an increased diameter of the platen due to the windings thereon causes the roll holder to turn at a greater speed than it is driven by said intermediate driving v-means.

41.. The combination of a carriage, a cylindrical platen carried thereby, a rotatively mounted cylindrical carbon roll holder carried by the carriage and of substantially the same diameter as the platen and having means for supporting a surplus roll or: carbon paper therein. and for enabling a strip of carbon paper from said roll sufiicient for use at any given time to be wound around the outer surface of said holder, means for detachably connecting the tree end of said strip to the platen so that it may be wound around. the platen with a work sheet as the strip is wound ed the roll holder, a hand actuated driving device, connections between said driving device and said platen, and intermediate driving means between said driving device and roll holder for positively turning the latter until an increased diameter of the platen due to the windings thereon causes the roll holder to turn at greater speed than it is driven by said intermediate driving means when the roll holder moves relatively to and in advance of said driving device by the pull on the carbon strip from the platen.

42. The combination of a carriage, a cylindrical platen carried thereby, a rotatively mounted cylindrical carbon roll holder carried by the carriage and of substantially the same diameter as the platen and having means for supporting a surplus roll of car bon paper therein and for enabling a strip of carbon paper from said roll suficient for use at any given time to be wound around the outer surface of said holder, means for detachably connecting the free end of said strip to the platen so that it may be wound around the platen with a work sheet as the strip is wound 0d the roll holder, 2. hand actuated driving device, connections between said driving device and said platen, and intermediate driving means between said driving device and roll holder for positively turning the latter until an increase diameter of the platen due to the windings thereon causes the roll holder to turn at a greater speed than it is driven by said intermediate driving means, said intermediate driving means including a spring normally inefiective to exert a pull on the carbon strip, and means that enable ill ill 

